Solve
-There Are $n$ People in a Room $N$ Of Possible Handshakes by All the People in the Room

question 21

Multiple Choice

Solve.
-There are $n$ people in a room. The number $N$ of possible handshakes by all the people in the room is given by the function $N ( n ) = \frac { n ( n - 1 ) } { 2 }$ . For what number n of people is $91 \leq N \leq 190$ ?

• A) \(\{ n \mid 13 \leq n \leq 22 \}\)
• B) \(\{ n \mid 15 \leq n \leq 19 \}\)
• C) \(\{ \mathrm { n } \mid 16 \leq \mathrm { n } \leq 19 \}\)
• D) \(\{ n \mid 14 \leq n \leq 20 \}\)

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Definitions:

Antagonistic Hormones

Hormones that have opposing effects on the body, regulating various physiological functions to maintain homeostasis.

Endocrine Glands

are ductless glands that release hormones directly into the bloodstream, regulating various body functions.

Pancreas

A glandular organ in the digestive and endocrine system of vertebrates producing digestive enzymes and hormones such as insulin.

Posterior Lobe

The back part of an organ or structure, such as the rear portion of the pituitary gland in the human brain.